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Highly efficient near‐infrared to visible upconversion luminescence in transparent glass ceramics containing Yb 3+ /Er 3+ :NaYF 4 nanocrystals
Author(s) -
Huang Ping,
Liu Feng,
Chen Daqin,
Wang Yuansheng,
Yu Yunlong
Publication year - 2008
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200724078
Subject(s) - photon upconversion , materials science , nanocrystal , luminescence , ceramic , doping , quenching (fluorescence) , infrared , absorption (acoustics) , energy transfer , lanthanide , analytical chemistry (journal) , optoelectronics , nanotechnology , fluorescence , ion , optics , composite material , chemistry , physics , atomic physics , organic chemistry
The frequency upconversion emissions of NaYF 4 nanocrystals embedded in transparent glass ceramics codoped with Yb 3+ /Er 3+ , prepared by melt quenching and subsequent heating, were investigated. It was found that, compared with that of the sample singly doped with 0.5Er 3+ , the intensities of the green and red upconversion luminescence increased by about 30 and 150 times, respectively, for the sample codoped with 0.5Er 3+ /1.0Yb 3+ , attributed to the efficient energy transfer from Yb 3+ with high absorption cross section to Er 3+ (both of them were concentrated in the NaYF 4 nanocrystals). The intense visible upconversion luminescence and the convenient, low‐cost synthesis of the glass ceramic make it an excellent substitutional material for the unobtainable bulk NaYF 4 crystals potentially applicable in many fields. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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